Log-hauler.



PATENTED MAY 21, 1907.

4 SHEBTSSHBET 1.

No. 854,364. A. 0. LOMBARD.

LOG HAULER.

APPLICATION FILED NOV. 22. 1905.

d a 0 ES a {a an a a n M- .v w N m 3 i o H S cw o V T w an m G Wlbufiscs:

No. 854,364. PATBNTED MAY 21, 1907.

A. 0. LOMBARD.

LOG HAULER.

APPLICATION FILED NOV. 22. 1 905.

4 SHBETS-SKEET 2- Wibiasses: a liwenim": 49, a filvinalonward,

PATENTED MAY 21', 1907.

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Jilin Jllvin 0.Lmnbard.

A. O. LOMBARD.

LOG HAULBR.

APPLICATION FILED Nov. 2;. 1906.

PATENTED MAY 21, 1907. A. 0. LOMBARD.

LOG HAULER. APPLICATION II'LED 10122, 1905.

4 SHEETS-SHEET 4.

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"H Min mwimummm Inner.- A fllvin O. Lombard,

E "Vial 1W Witnesses:

ALVIN- o LOMBARD,

OF WATERVILLE, MAINE LOG-HAU'LER.

Specification of Letters Patent.

Patented May 21, 1907.

Application filed November 22,1905. s rial No. 288,646.

To all wit/0111 it may concern.-

it known that I, ALVIN O. LOMBARI), a citizen of the United States of America, and

' a resident of Waterville, in the county of Kentlon.

' gether at timber 11 rear ends uprights 13 are secured thereto.

nebec and State of Maine, have invented certain new and useful Im rovements 1n Log- I-Iaulers, of which the fol owing 1s a specifica- This invention relates to traction engines and has for its object the production of an engine especially adapted for use in haulin heavy loads of logs on sleds over roads of packed snow.

The invention consists in certain novel features of construction and arrangement of parts which will be readily understood by refercnce to the description of the drawings and to the claims to be hereinafter given.

Of the drawings: Figure 1 represents a perspective. view of a traction engine em- .)odying the features of this invention. Fig. 2 represents a plan view of a portion of the main. frame and the traction mechanism therefor. Mg. 3 represents a side elevation of the same. Fig. 4 represents a section on line 44 on Fig. 3 looking in the direction of the arrow. Fig. 5 represents a section of one of the roller supports and the oiling device therefor. Fig. 6'represents a plan of one of the roller supports. Fig. 7 represents a section on line 7-7 on Fi 2. Fig. 8 represents an elevation of one-o the bearings for the traction members showing thes ring connection between said bearing an the main frame. Fig. 9 represents an elevation of the same. Fig. 10 represents an elevation of a portion of a sprocket wheel'for supporting and driving the traction chain or be t, a portion of the latter'being shown in section applied thereto, and Fig. 11 represents a section of the same on line 1 111 pn Fig. 10, look ing in the direction of the arrow.

Similar characters designate like arts throughout the several figures of the rawin s.

Tn the drawings a main frame is shown consistingofside members 10 connected totheir front ends by means of the and the connector 12 while at their Interposed between these uprights 13 and secured thereto is the fire- 0t 14 of a locomotive boiler 15 of an ordinary construction. The front end of t e boiler 15 is mounted upon u ri hts 16 bolted to the side members 10 whi e t e forward end of the boiler is fursion 19 adapted to carry ther supported by means of the braces 17 either end of which is secured to said boiler and said side frame. To the rear of the boiler 15 and supported b the side members 10 is a cab .18 of any ordinary construction the rear of which is provided with an extenthe coal used in op- I A water tank 20 issupporte by said boiler 15 said tank being provided with an inlet 21 through which said tank may be filled by means of the hose pipe 22 which is thrown over the tank when not 1n use, as shown in Fig. 1. Secured to the side members 10 and extending from one to the other is a tool receptacle 23 which also serves as a seat for the operator of the steering mechanism which consists of the runners 24 connected together to form a sled provided with a central pintle, said sled being connected by suitable gearing 25 to a revoluble shaft aving secured to'its uppper end a steering wheel 27. By turning the wheel 27 the opereratin the engine.

ator may move the runner frame about its pivotal connection with the main frame and therelby change the direction of the hauler atwi l.

Interposed between and. secured to the under sideiof the members 10 is a frame 28 pro vided with suitable bearings 29 for the reception of a divided shaft 30 the outer ends of which are provided with sprocket wheels 31 while the inner ends have secured thereto bevel wheels 32. Both of the wheels 32 mesh with a plurality of pinions 33 revoluble about a trunnion 34 having a bearing in a plate 35 secured by a plurality of bolts to the web36 of the annulus 37, the outer face of which is provided with a plurality of gear teeth 38. These teeth 38 mesh with the teeth of-the tpinion 39 keyed to the shaft 40 mounted in cured to the frame 28. The shaft 40 is also provided with bearings at '42 in the enginesupporting'member 43 which member is secured to the side members 10 in any suitable manner. The outer ends of the trunnions 34 bear against the inner face of the web 36 and the gear 33 thereon is prevented from displacement therefrom by said-web 36 when the plate 35 is in position. When the plate 35 and annulus 37 are separated the plmons 33 may be readily removed. The inner ends of the shafts 30,extend in the central bearing of the plate 35 and thereby support the same.

To the outer ends of the shaft 40 are secured the weighted crank members 44 each earings in the supports 41 se- 1 IIO connected by a member 45 to the piston rod 46 of the cylinder 47 of a suitable direct acting engine 48 secured to each of the engine supports 43.

The engine is provided wlth suitable mechanism for operating the valves all of which is shown in the drawings but is not herein described as it may be of any well-known conthe members downwardly extending brackets 52 are secured thereto, said brackets being bifurcated and provided with vertically slidable boxes 53, each of said boxes being provided witha bearing for an axle 54. On the outer ends of the axle 54 are boxes 55 *i'tdjustably secured to they framework or runners 56. These boxes form the rear sled of the hauler. The boxes 56 are provided 'at either end with revoluble shafts 57,58. The shaft 57 is provided with a sprocket wheel 59 connected by a chain 60 to the sprocket wheel 31 on the shaft 30'. The shaft 57 is also provided with a sprocket wheel 61 interposed beween the two runners 56 and the shaft 58 is similarly provided with a sprocket wheel 62 The sprocket wheels 61-62 have mounted thereon and operate thereby a traction lag chain or belt 63 as shown in the drawings, the tread surface of said chain 63 being provided with transverse ribs 64 which co-operate with the snow or ground over which the device is operating to secure a better hold thereon and cause the device to be moved forward as the lag chain 63 is operated by means of the wheels 6162. The wheels 61-62 are driven by the engine mechanism through the mediumof the sprocket wheels 3159 and driving chain 60..

The shaft 58 is mounted in bearings in a block 65 adjustable upon the runners 56 to move the wheel 62 toward and from the wheel 61 to suitably adjust the chain 63. The block 65 is, provided with devices 65* adapted to clamp said block 65 in adjusted position. In a similar manner the. runners 56 may be moved toward and from the sprocket wheel 31 by adjusting them upon the block 55 to suitably adjust the chain 60. The block 55 is provided with'devices 55* for clamping when said block has. been adjusted by means of the adjusting screws 56*. Resting upon the box 53 on either side of the depending bracket 52 are plates 66 connected together at either end by stirrups 67 having secured thereto spiral springs 68 upon which the side members 10 rest. This simple device provides a yielding connection between the traction runners and the main frame of the engine, allowing the parts to yield to a greater or less extent when passing over uneven. surfaces, thereby preventing undue jar to the parts. To the outer face of theribs 69 on the runners 56 is secured a plate 70 by means of bolts 71 said plate being provided with a plurality of bearings to receive the outer trunnion ends 72 of the short stud or shaft 73,'the other end of which is provided with a trunnioned end 72* mounted on a bearing in the runner 56.

When placed in position with the trunnions 7 27 2* in the bearings in the runner 56 and plate 70, by means of the bolts 7 .1, said plate is brought firmly against the shoulders of said trunnioned shafts73 to prevent them from turning in their bearings. On the shaft 73 interposed between the plate 70 and the. web of the runner 56 is an antifriction roller 74 which extends slightly below the lower face of the runner 56 preventing the traction chain 63 from contacting with the lower face of the runner, thereby preventing friction and causing the device to run much more easily.

The shaft 73 is provided with a slot 75 extending lengthwise of its greater diameter and inserted within this slot is a grooved wooden member 76 while the lower end of said slot 75 communicates with an upturned. pipe 77 the upper end of which is closed by a weighted metal stopper 78. This pipe 77 is filled-with oil which passes into the slot 7 5 and is carried up through the grooves in the member 76 to oil the outer surface of said shaft 73 and the bearing surface of the roller thereon.

The chain 63 is made up of a plurality of members pivoted together by means of bolts 79 on which is mounted midway of its length a roller member 80 which is adapted to engage the teeth 81 of the sprocket wheels 61-62. This prevents the members of the chain 63 from engaging with. theteeth and producing wear thereon, the rollers engaging vwith the teeth in such a manner as to pro.-'

duce but very little friction. Snow is prevented from packing in between the teeth, as has been found to be the practice in devices heretofore in use, any snow which gets into the space between the teeth and the rollers being thrown out rapidly by the revolution of said rollers.

' It has been found in practice that a direct acting engine on either side of the frame operating on quarters to drive the traction mechanism, with differential gearing interposed between the traction mechanism and the engine secures much better results than it has been possible to obtain heretofore in devices of this kind. The differential gearing used is novel and simple in its construction, readily set up and very effective in its-operation. Heretofore, wherever the' traction .members have been secured directly to the frame the jar caused thereby to the various parts were to a greater or less extent injurious thereto and it has been found necessary to'provide a simple yielding connection betwcenthe traction members and the frame.

This is thoroughly accomplished by the device shown and described. Another advantage of the construction shown in this application is the roller members which provide a simple means for causing the chain to impinge upon the surface of the ground over which the device is traveling while at the same time the friction thereon is reduced to a minimum.

It has been found in practice that much better results will be obtained when the rear sprocket wheels of the traction members are driven by means of chains from driving members located ahead of said traction members beted portion, and a roller upon said pivot to co-act with a sprocket wheel.v

2. In a traction engine, a traction member comprising. a number of tread sections rabbeted together by a plurality of end projections tangential to the tread .surfaceof said sections to form a flexible belt with a continuous tread surface, a pivot through said rabbeted portion, and a roller on each of said sections adapted'to coact with theteeth ofa sprocket wheel.

3. In a traction engine, a traction member comprising a number of tread sections rab beted together by a plurality of end projections tangential. to the tread surface of said sections to form a flexible belt with acontinuous tread surface, each of said sections being provided with a central slot at either end, a

pivot extending through said rabbeted portion and across said slot, and a roller upon said pivot insaid slot adapted to co-act with a sprocket wheel the teeth of which enga ing with said roller are adapted to extend mto said slot.

t. In a traction engine, the combination with suitable motive power and a driving shaft having'a driving member on either end, ofa pair of traction members each comprising a framework adapted to rock about a center intermediate its ends, a pair of sprocket wheels supported in bearings secured to either end thereof, a flexible traction belt composed of sections pivoted together and provided with rollers upon the pivots thereof adapted to engage the teeth of said sprocket wheels and with ribs on the outer face, and mechanism interposed between said driving member and one of said sprocket wheels to transmit motion from the former to the latter:

5. In a traction engine, the combination with suitable motive power and two sprocket whee-ls driven thereby, of a pair of traction members each comprising a framework adapted to rock about a-center intermediate its ends, a pair of wheels supported inbearings on either end thereof, a flexible traction belt composed of sections pivoted together to form a continuous, tread surface and provided with members adapted to engage said wheels and with ribs on said tread surface said belt passing beneath the under face of said framework from end to end and in the same vertical plane therewith, and mechanism interposed between each of said sprocket wheels and one of said wheels to transmit motion from the former to the latter.

6. In a traction engine, the combination with suitable motive power and members driven thereby, of a pair of traction members each comprising a framework adapted to rock about a center intermediate its ends, a pair of wheels supported in bearings on either end thereof, a flexible traction belt com osed of sections pivoted together and provir ed with members adapted to en age said Wheels and with ribs on the outer f ace said belt passing loo beneath the under face of said framework from end to end and in the same vertical plane therewith, and mechanism interposed between said driving members and the rear wheel to transmit motion from the former to the latter.

7. In a traction engine, the combination with suitable motive power and members driven thereby, of a pair of traction members each comprising a framework adapted to rock about a center intermediate its ends, a pair of wheels sup ortedin bearings on either end thereof, a exible traction belt composed of sections pivoted together and supported by said wheels-said belt passing beneath the urider face of said framework from end to end and in the same vertical plane therewith, and a plurality of rollers supported in hearings in said framework and preventing contact between said belt and the under face of said framework; I

. 8. In a traction engine, a traction member comprising a framework adapted to rock about a center intermediate its ends, a pair of wheels supported in bearings secured to said framework, a flexible traction belt composed of sections pivoted together and supported by said. Wheels said belt passing beneath the under face of said framework from end to end and in the same vertical plane therewith, and

a plurality of rollers supported in bearings in said framework and preventing contact between said belt and the under face of said framework.

- same vertical plane therewith, a plurality of shafts fixed in said framework, and a roller mounted on each end of each shaft adapted to prevent contact between said belt-and the under face of said frame.

. 10. In a traction engine, a traction member comprising a framework, a pair of wheels supported thereby, a flexible traction belt composed of sections pivoted together and supported by said wheels said belt passing beneath said framework, a plurality of shafts fixed in said framework, a capillary oiling device for each shaft, an oil pipe in the end of said shaft communicating with said oiling device, and a roller mountedv on each shaft and adapted to prevent contact between said belt and the under face of said frame.

11. In a traction engine, a traction member comprising a framework, a pair of wheels supported thereby, a flexible traction belt composed of sections pivoted together and supported by said wheels said belt passing beneath said framework, a plurality of shafts fixed in said framework, a grooved wooden member inserted in a vertical slot in said shaft, and an oil pipe'in the end of said shaft communicating with said vertical slot.

12. In a traction engine, a traction member comprising a framework adapted to rock about a center intermediate its ends, a pair of wheels supported in bearings secured thereto, a flexible traction belt composed of sections pivoted together and supported by said wheels said belt passing beneath the under face of said framework and in the same vertical lane therewith, a sprocket-wheel on the I sha t of one of the rear wheels, a sprocket wheel on a driving shaft, and a chain connectin said sprocket wheels.

13. n a traction engine, the combination of a main frame, front and rear sleds therefor, means for steering the front sle'd, a pair of wheels mounted in each runner of the rear sled, a flexible traction belt on each pair of wheels, a sprocket wheel secured to the shaft of one of each pair of wheels, a driving shaft, two shafts parallel thereto, a sprocket wheel on each of the latter shafts, connectors between said sprocket wheels and those first mentioned, and differential earing interposed between said parallel sIiafts and the said driving shaft.

14. In a traction engine, the combination of a main frame, front and rear sleds therefor,

means for steering the front sled, a pair of and connectors between the last-mentioned sprocket wheels and those first mentioned.

15. In a traction engine, the combination with the mam e'ngme-supporting frame, of-

depending brackets therefrom, vertically slidable boxes therein, an axle in said boxes, a traction runner member on each end of said axle, and a spring connector interposed between said boxes and frame on opposite sides of said axle.

16. In a traction engine, the combination 'with the main engine-supporting frame, of

depending brackets therefrom, vertically slidable'boxes therein, an axle in said boxes, a traction runner member on each end of said axle, members resting on said boxes, and springs interposed between said members anil said main frame on opposite sides of said ax e.

17. In a traction engine, the combination with the mainframe, of de ending brackets therefrom, vertically slidabIe boxes therein, an axle in said boxes, a traction member on each end of said axle, members resting on said boxes on each side of said brackets, stirrups connecting the ends of said members on opposite sides of said axle, and springs interposed between said stirrups and said main frame.

18. In a traction en ine, the combination with two traction mem ers composed of two wheels supporting a flexible traction belt, of driving mechanism therefor, two revoluble shafts for said driving mechanism in alinement with the inner ends substantially abutting, a plate supported by the inner ends of said shafts, a toothed annulus secured to said plate, a revoluble pinion for driving said annulus, a revoluble shaft for said pinion, a crank on either end thereof, and an engine for driving each of said cranks.

19. In a traction engine, the combination of'an axle, a box therefor on either end, a framework secured to each box, sprocket wheels mounted on said framework, a flexible traction belt thereon passing beneath the under face of the same, a driving wheel on the shaft of one ofthe sprocket wheels, a pmniary driving wheel, a connector between said driving wheels, means for adjusting said framework relative to said axle box, and means for locking said box and said framework together when in adjusted position.

'20. In a traction engine,.the combination 01 an axle, a framework secured thereto, a

' sprocket wheel secured to said framework, a

-work toward or from said first-mentioned sprocket wheel, means for lockm'g said box and framework to ether when in adjusted position, and a flexible traction belt mounted upon said sprocket wheels and passing be neath the underface of said framework and in the same vertical plane.

21. In a traction engine, the combination of an axle, a framework secured thereto, two sprocket wheels secured to said framework, a fixed bearing for one of said sprocket wheels, a bearing for the other sprocketwheel movable toward and from the fixed bearing, means for locking said bearing to said frame work in adjusted position, and a flexible traction beltmounted upon said sprocket wheels and passing beneath the under face of said framework and in the same vertical plane.

22. In a traction 'engine,the combination of an axle, a framework secured thereto, two sprocket wheels secured to said framework, a fixed bearing for one of said sprocket wheels, a bearing for the other sprocket wheel movable toward and from the fixed bearing, means for locking said bearin to said framework in adjusted position, a fi exible traction belt mounted upon said sprocket wheels and passing beneath the under face of said. framework and in the same vertical plane, a driving shaft, a driving member thereon, a driven member in axial line with and movablewith one of said sprocket wheels, a connector between said driving member and driven member, means for ad usting said framework relat-ive to'said axle, and means for locking said 40 framework in adjusted position.

Signed by me at Waterville Maine this 18th day of November, 1905.

ALVIN o. LOMBARD. 'WVitnesses FRED J. ARNOLD, LorTrE M. LUBLOW. 

